To Next PageTo Next PageWhat to do if my Lennox MLA009S4S-1P shows an outdoor EEPROM malfunction?
If your Lennox Air Conditioner displays an outdoor EEPROM malfunction, try these steps: * Power off the unit, then restart it after 3 minutes. * If the issue persists, the outdoor main PCB may need to be replaced.
General| Brand | Lennox |
|---|---|
| Model | MLA009S4S-1P |
| Category | Air Conditioner |
| Language | English |
Explains the model number nomenclature for MCFA and MCFB ceiling/floor indoor units, covering unit type and series.
Details valid combinations of MPA outdoor units with various indoor units for multi-zone systems, including capacity matching.
Provides wiring diagrams for MPA and MPB single-zone outdoor units, essential for installation and troubleshooting.
Presents the wiring diagram for the M22A indoor unit, illustrating connections for various components.
Shows the wiring diagrams for MMDA ducted indoor units, detailing connections for fan, pump, and sensors.
Details how to set unique addresses for indoor units when connecting to a centralized controller.
Provides guidelines for calculating and adding refrigerant to single-zone systems based on pipe length.
Troubleshooting communication errors between outdoor and indoor units (E2) with wiring and PCB checks.
Troubleshooting for high/low voltage protection (E5), including voltage checks and component replacement.
Troubleshooting for outdoor DC fan motor speed errors (E8), involving wiring, fan motor, and PCB checks.
Procedure for checking compressor winding resistance to identify shorts and terminal identification.
Explains how to calculate total capacity request based on unit ratings, temperature, and modify rates.
